#!/bin/sh

# Slackware build script for dionaea dependencies
# based on the SBo SlackBuild template
#
# if you build with lxml, make sure you have python3 installed
# i recommend getting the SlackBuild from http://slackbuilds.org/
#
# NOTE: (10.5.2011): dionaea currently requires python 3.2!

# last modified:	2011 May 29

# this script tries to follow the dionaea installation
# instructions as close as possible, instructions available at:
# http://dionaea.carnivore.it/#compiling

# all the libraries are installed under /opt/dionaea

# all the libraries will be downloaded if necessary
# this package contains the following libraries:
#
#    library	version		condition
#    * libev	$LIBEV_VERSION
#    * liblcfg	git HEAD
#    * libemu	git HEAD
#    * lxml	$LXML_VERSION	if (( $WITH_LXML ))
#    * libudns	$UDNS_VERSION
#    * libnl	git HEAD	if (( $WITH_LIBNL ))

# Written by pyllyukko - http://maimed.org/~pyllyukko/

umask 022

PRGNAM="dionaea-libraries"
# the versions vary, so we stick with current date as version.
VERSION=${VERSION:-`date +%Y%m%d`}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}

LIBEV_VERSION="4.04"
LIBEV_URLS=(
  "http://dist.schmorp.de/libev/libev-${LIBEV_VERSION}.tar.gz"
  "http://dist.schmorp.de/libev/Attic/libev-${LIBEV_VERSION}.tar.gz"
)
GOT_LIBEV=0
# current stable version (29.5.2011) is 0.1,
# but http://dionaea.carnivore.it/#install_udns has 0.0.9, so we'll use that.
#UDNS_VERSION="0.1"
UDNS_VERSION="0.0.9"
UDNS_URLS=(
  "http://www.corpit.ru/mjt/udns/udns_${UDNS_VERSION}.tar.gz"
  "http://www.corpit.ru/mjt/udns/udns-${UDNS_VERSION}.tar.gz"
  "http://www.corpit.ru/mjt/udns/old/udns_${UDNS_VERSION}.tar.gz"
  "http://www.corpit.ru/mjt/udns/old/udns-${UDNS_VERSION}.tar.gz"
)
GOT_UDNS=0
# lxml - http://lxml.de/build.html
# 10.5.2011: switched to version 2.3.
#            the 2.2.6 version recommended at carnivore.it refused to compile.
LXML_VERSION="2.3"
LXML_URL="http://lxml.de/files/lxml-${LXML_VERSION}.tgz"

# path where python3.2 resides
# python3.SlackBuild from SBo defaults to /usr/bin
PYTHON3_PATH="/usr/bin"
PYTHON3_BIN="python3.2"

# lxml is optional, but recommended
# 0 = false, 1 = true
WITH_LXML=1
# libnl is also optional (dionaea.SlackBuild doesn't even use it yet, so keep this to 0 for now)
WITH_LIBNL=0
# get fresh Cython git checkout and install under /opt?
WITH_CYTHON_GIT=1

# python3 is only required when you build with lxml
(( ${WITH_LXML} )) && [ ! -x "${PYTHON3_PATH}/${PYTHON3_BIN}" ] && {
  echo "error: \`${PYTHON3_PATH}/${PYTHON3_BIN}' does not exist, or is not executable!"
  echo "       if you have python3 installed somewhere else, please change the"	
  echo "       PYTHON3_PATH variable accordingly."
  exit 1
} 1>&2

CWD=$(pwd)
TMP=${TMP:-/tmp/dionaea}
PKG=$TMP/package-${PRGNAM}
OUTPUT=${OUTPUT:-/tmp}	# Drop the package in /tmp

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
fi

function print_slack_desc() {
  local LXML_LINE
  local LIBNL_LINE
  (( ${WITH_LXML} )) && LXML_LINE="   - lxml	(a Pythonic binding for the libxml2 and libxslt)" || LXML_LINE=""
  (( ${WITH_LIBNL} )) && LIBNL_LINE="   - libnl" || LIBNL_LINE=""
  cat 0<<-EOF
	# HOW TO EDIT THIS FILE:
	# The "handy ruler" below makes it easier to edit a package description.  Line
	# up the first '|' above the ':' following the base package name, and the '|'
	# on the right side marks the last column you can put a character in.  You must
	# make exactly 11 lines for the formatting to be correct.  It's also
	# customary to leave one space after the ':' except on otherwise blank lines.

	                 |-ruler------------------------------------------------------|
	dionaea-libraries: dionaea-libraries (dionaea dependencies)
	dionaea-libraries:
	dionaea-libraries: this package includes the following libraries:
	dionaea-libraries:   - liblcfg	(lightweight configuration file library)
	dionaea-libraries:   - libev	(high-performance event loop/event model)
	dionaea-libraries:   - libudns	(stub DNS resolver library)
	dionaea-libraries:   - libemu	(library for basic x86 emulation)
	dionaea-libraries:${LXML_LINE}
	dionaea-libraries:${LIBNL_LINE}
	dionaea-libraries: http://dionaea.carnivore.it/
	dionaea-libraries:
EOF
  return 0
} # print_slack-desc()

set -e # Exit on most errors

cat 0<<-EOF
	${0##*/}:
	  libev version:	${LIBEV_VERSION}
	  udns version:		${UDNS_VERSION}
	  lxml version:		${LXML_VERSION}
EOF

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
pushd "${TMP}"
rm -rf "${PRGNAM}-${VERSION}"

# liblcfg
rm -rf liblcfg
git clone git://git.carnivore.it/liblcfg.git liblcfg
pushd "liblcfg/code"
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;
autoreconf -vi
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/opt/dionaea \
  --build=$ARCH-slackware-linux
make
make install DESTDIR=$PKG
popd
# /liblcfg

# libev
rm -rf "libev-${LIBEV_VERSION}"
[ ! -f "${CWD}/libev-${LIBEV_VERSION}.tar.gz" ] && {
  pushd "${CWD}"
  set +e
  for LIBEV_URL in ${LIBEV_URLS[*]}
  do
    wget "${LIBEV_URL}" 
    [ ${?} -eq 0 ] && {
      GOT_LIBEV=1
      break
    }
  done
  set -e
  popd
  (( ! ${GOT_LIBEV} )) && {
    echo "error: failed to download libev!" 1>&2
    exit 1
  }
}
tar xvf "${CWD}/libev-${LIBEV_VERSION}.tar.gz"
pushd "libev-${LIBEV_VERSION}"
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;
autoreconf -vi
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/opt/dionaea \
  --mandir=/usr/man \
  --build=$ARCH-slackware-linux
make
make install DESTDIR=$PKG
popd
# /libev

# libudns
rm -rf "udns-${UDNS_VERSION}"
[ ! -f "$CWD/udns_${UDNS_VERSION}.tar.gz" -a \
  ! -f "$CWD/udns-${UDNS_VERSION}.tar.gz" ] && {
  pushd "${CWD}"
  set +e
  for UDNS_URL in ${UDNS_URLS[*]}
  do
    wget "${UDNS_URL}"
    [ ${?} -eq 0 ] && {
      #UDNS_TARGZ="${UDNS_URL##*/}"
      GOT_UDNS=1
      break
    }
  done
  set -e
  popd
  (( ! ${GOT_UDNS} )) && {
    echo "error: failed to download udns!" 1>&2
    exit 1
  }
}
#tar xvf "$CWD/udns_${UDNS_VERSION}.tar.gz"
tar xvf $CWD/udns[_-]${UDNS_VERSION}.tar.gz
pushd "udns-${UDNS_VERSION}"
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure
make shared
cp udns.h "${PKG}/opt/dionaea/include/"
cp *.so* "${PKG}/opt/dionaea/lib/"
cd "${PKG}/opt/dionaea/lib"
ln -s libudns.so.0 libudns.so
popd
# /libudns

# libemu
rm -rf libemu
git clone git://git.carnivore.it/libemu.git libemu
pushd "libemu"
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;
autoreconf -vi
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/opt/dionaea \
  --build=$ARCH-slackware-linux
make
make install DESTDIR=$PKG
popd
# /libemu

# lxml
(( ${WITH_LXML} )) && {
  rm -rf "lxml-${LXML_VERSION}"
  [ ! -f "${CWD}/lxml-${LXML_VERSION}.tgz" ] && {
    pushd "${CWD}"
    wget "${LXML_URL}"
    popd
  }
  tar xvf "${CWD}/lxml-${LXML_VERSION}.tgz"
  pushd "lxml-${LXML_VERSION}"
  chown -R root:root .
  find . \
   \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
   -exec chmod 755 {} \; -o \
   \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
   -exec chmod 644 {} \;
  # fix some py3 issues with lxml
  ${PYTHON3_PATH}/2to3 -w src/lxml/html/_diffcommand.py
  ${PYTHON3_PATH}/2to3 -w src/lxml/html/_html5builder.py
  
  ${PYTHON3_PATH}/${PYTHON3_BIN} setup.py build
  ${PYTHON3_PATH}/${PYTHON3_BIN} setup.py install --root=${PKG}
  popd -n
}
# /lxml

# libnl
(( ${WITH_LIBNL} )) && {
  rm -rf "libnl"
  git clone git://git.kernel.org/pub/scm/libs/netlink/libnl.git
  pushd "libnl"
  autoreconf -vi
  export LDFLAGS=-Wl,-rpath,/opt/dionaea/lib
  ./configure --prefix=/opt/dionaea
  make
  make install DESTDIR=${PKG}
  unset LDFLAGS
  popd
}
# /libnl

# bleeding edge cython
(( ${WITH_CYTHON_GIT} )) && {
  rm -rf "cython"
  git clone https://github.com/cython/cython.git
  pushd "cython"
  ${PYTHON3_PATH}/${PYTHON3_BIN} setup.py install --root=${PKG} --prefix=/opt/dionaea
  popd
}

# Copy the slack-desc (and a custom doinst.sh if necessary) into ./install
mkdir -p "${PKG}/install"
#cat $CWD/slack-desc > $PKG/install/slack-desc
print_slack_desc 1>${PKG}/install/slack-desc

# Make the package
pushd "${PKG}"
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
exit 0